Mounjaro 15mg: maximum dose explained
What the 15mg dose of Mounjaro (tirzepatide) is for, where it sits in the step-up schedule and what to discuss with your prescriber.
Where 15mg fits
- Step 12.5mgfrom week 1
- Step 25mgfrom week 5
- Step 37.5mgfrom week 9
- Step 410mgfrom week 13
- Step 512.5mgfrom week 17
- Step 615mgfrom week 21
The UK product information says to stay on each dose for at least 4 weeks before increasing. Weeks shown are the earliest possible; many people stay on a dose for longer, and some stay on a lower dose.
15mg is the highest dose of Mounjaro listed in the UK product information. Not everyone needs or tolerates the maximum dose.
Always use the dose your prescriber has prescribed and follow the Patient Information Leaflet. Do not change your dose yourself, and never use a pen or tablet strength that was not prescribed for you.
All Mounjaro doses
| Dose | Role | Earliest start (if increased at every step) |
|---|---|---|
| Mounjaro 2.5mg | Starting dose | Week 1 |
| Mounjaro 5mg | Step-up dose | Week 5 |
| Mounjaro 7.5mg | Step-up dose | Week 9 |
| Mounjaro 10mg | Maintenance dose | Week 13 |
| Mounjaro 12.5mg | Maintenance dose | Week 17 |
| Mounjaro 15mg | Maximum dose | Week 21 |